{"coeffs": [-4.817448991141822e-07, 0.4952275518438078, 1.958118979123165, 0.1477231293860985], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [7.944611671545883e-07, 861.0045176664577, 258.02543512066245, 0.02114480249672317], "covariance": [[6.311685461166307e-13, -0.0004970578883100738, -0.0001489792900603329, -1.4148366425942523e-08], [-0.0004970578883117658, 741328.7794420493, 222161.0608110817, 17.526907674882498], [-0.00014897929006136277, 222161.06081108135, 66577.12516920718, 5.25275226431467], [-1.4148366425949823e-08, 17.52690767484498, 5.252752264302006, 0.00044710267262543035]]}